Question: who  is the influenced by of Christopher hitchens?
Paraphrase: who is the impacted by of Christopher hitchens?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P737 wd:Q49081 . ?sbj wdt:P31 wd:Q5 } 
Answer: Douglas Murray, Perry DeAngelis, Salman Rushdie, Richard Dawkins